Uptake and translocation of imidacloprid via seed pathway and root pathway during early seedling growth of corn
- 1 November 2020
- journal article
- research article
- Published by Wiley in Pest Management Science
- Vol. 76 (11), 3792-3799
- https://doi.org/10.1002/ps.5930
Abstract
BACKGROUND A systemic seed treatment can be taken up into shoot tissues during early corn seedling growth. However, the pathway that a systemic compound is taken up, either from seed or root uptake to shoot tissues is not fully understood. To study the single contributions of seed pathway and root pathway for the uptake and translocation of imidacloprid seed treatment, two methods were developed: A seed treatment method and a growing media/hydroponic solution delivery method. The seed treatment method employed a live and dead seed separated with plastic wrap to provide a barrier. The growing media/hydroponic solution delivery method quantified the capacity for uptake by seeds and roots. RESULTS The seed pathway transported 1.9-2.5 times more imidacloprid into shoot tissues when compared to the root pathway at the same dosage rate. The higher amount of imidacloprid taken up and translocated by the seed pathway was attributed to the fact that the corn seeds were in direct contact with high provided concentrations of imidacloprid. However, the root pathway showed 7.9-9.5 times higher capacity for transporting imidacloprid into shoot tissues when compared with the seed pathway. Whenever imidacloprid was taken up by seed or root, amounts of imidacloprid were measured in both tissues of seed and root. CONCLUSION The seed pathway transported more imidacloprid than the root pathway during early seedling growth since corn seeds were contacted by higher concentrations of imidacloprid. Both seed pathway and root pathway were occurring concurrently during early seedling growth of corn.Funding Information
- National Basic Research Program of China (2017YFD0201603)
This publication has 26 references indexed in Scilit:
- Relationships between compound lipophilicity on seed coat permeability and embryo uptake by soybean and cornSeed Science Research, 2018
- Systemic Seed Treatment Uptake during Imbibition by Corn and SoybeanCrop Science, 2018
- Comparison of uptake, translocation and accumulation of several neonicotinoids in komatsuna (Brassica rapa var. perviridis) from contaminated soilsChemosphere, 2018
- Aqueous pathways dominate permeation of solutes across Pisum sativum seed coats and mediate solute transport via diffusion and bulk flow of waterPlant, Cell & Environment, 2012
- Seed treatments: phytotoxicity amelioration and tracer uptakeSeed Science Research, 2012
- Plant Uptake of Non-Ionic Organic ChemicalsEnvironmental Science & Technology, 2005
- Phytoremediation: synergistic use of plants and bacteria to clean up the environmentBiotechnology Advances, 2003
- Seed Germination, Mobilization of Food Reserves, and Seed DormancyPublished by Elsevier BV ,2002
- Study of Root Uptake and Xylem Translocation of Cinmethylin and Related Compounds in Detopped Soybean Roots Using a Pressure Chamber TechniquePlant Physiology, 1990
- Relationships between lipophilicity and root uptake and translocation of non‐ionised chemicals by barleyPesticide Science, 1982